Results 121 to 130 of about 508,064 (311)

Hibridização in situ fluorescente: princípios básicos e perspectivas para o diagnóstico de doenças infecciosas em medicina veterinária

open access: yesArquivos do Instituto Biológico
Nesse manuscrito são discutidos aspectos relevantes sobre desenvolvimento da técnica de hibridização fluorescente in situ, seus princípios básicos, aplicações e perspectivas em medicina veterinária.
S.M.N. Neves, R.M.C. Guedes
doaj  

A Microbial Lipid‐ATP Synthase Axis Fuels NK Cell Antitumor Activity

open access: yesAdvanced Science, EarlyView.
This study focuses on the mechanism by which gut microbiota‐derived outer membrane vesicles (OMVs) regulate NK cell antitumor activity. B. intestinalis is identified to decrease extra‐intestinal tumor growth via its OMVs enriched in sphingosine (SP).
Kaiyuan Yu   +16 more
wiley   +1 more source

Microvariation artifacts introduced by PCR and cloning of closely related 16S rRNA gene sequences

open access: yes, 2001
A defined template mixture of seven closely related 16S-rDNA clones was used in a PCR-cloning experiment to assess and track sources of artifactual sequence variation in 16S rDNA clone libraries. At least 14% of the recovered clones contained aberrations.
Speksnijder, Arjen   +8 more
core   +1 more source

Cuproptosis and Mitophagy Mediated by the THUMPD1/IGF2R‐Dependent Suppression of AKT and Activation of AMPK Signaling Suppress Lung Adenocarcinoma Progression

open access: yesAdvanced Science, EarlyView.
THUMPD1 drives a tumor‐suppressive signaling cascade in lung adenocarcinoma by promoting IGF2R expression. IGF2R associates with PPP2R1A to suppress AKT and activate AMPK, leading to SLC31A1 upregulation and copper accumulation. Elevated copper disrupts mitochondrial metabolism and induces excessive mitophagy, thereby restraining tumor growth and ...
Kai Wu   +10 more
wiley   +1 more source

Dbp6p, Nop8p and Rsa3p are components of 90S and 27SA2 pre-rRNA-containing pre-60S particles.

open access: yes, 2018
Immunoprecipitation experiments were carried out with IgG sepharose and extracts from cells expressing FPZ-tagged versions of Npa2p, Dbp6p, Nop8p or Rsa3p.
Sébastien Fribourg (5706446)   +10 more
core   +1 more source

Comparative evaluation of sequence analysis of 16S rRNA and rpoB genes for identification of aquatic mycobacteria [PDF]

open access: yes, 2016
The nucleotide sequences of partial 16S rRNA and bacterial RNA polymerase ß-subunit (rpoB) genes for 57 mycobacterial strains were determined.
Pourahmad, Fazel, Richards, Randolph
core   +1 more source

β‐Elemene Rescues Radiation‐Induced Enteritis by Orchestrating a Host‐Microbiome Circuit That Fuels Epigenetic DNA Repair

open access: yesAdvanced Science, EarlyView.
This study elucidates that β‐elemene promotes cellular uptake of L. gasseri‐derived lactate by enhancing the membrane translocation of MCT1 in a CD147‐dependent manner. Intracellular lactate, through the lactylation of RBBP4 at the K26 site, recruits EP300 to the promoter regions of downstream genes (POLD1/POLD3), catalyzing H3K27ac modification.
Jiancheng He   +10 more
wiley   +1 more source

Phylogenetic analysis of microbial communities in different regions of the gastrointestinal tract in Panaque nigrolineatus, a wood-eating fish

open access: yes, 2012
The Neotropical detritivorous catfish Panaque nigrolineatus imbibes large quantities of wood as part of its diet. Due to the interest in cellulose, hemi-cellulose and lignin degradation pathways, this organism provides an interesting model system for the
McDonald, R.   +8 more
core   +1 more source

UCHL3 Regulates Subgenomic Flaviviral RNA Condensates to Promote Virus Propagation

open access: yesAdvanced Science, EarlyView.
ABSTRACT Flavivirus subgenomic RNAs (sfRNAs) antagonise antiviral defences, yet how sfRNAs are organized and maintained in cells remains poorly understood. Here we identify ubiquitin C‐terminal hydrolase L3 (UCHL3) as a post‐translational regulator of flavivirus sfRNA stability and function.
Oscar Trejo‐Cerro   +7 more
wiley   +1 more source

Targeting Supramolecular Active Complexes of Nav1.7/Nav1.8 to Relieve Chronic Neuropathic Pain

open access: yesAdvanced Science, EarlyView.
In mice and patients with severe chronic neuropathic pain (NP), Nav1.7, Nav1.8, TrkB, and five cytoskeletal proteins form supramolecular active complexes (SMACs) with polygonal lattice structures as noxious signal amplifiers in dorsal root ganglion (DRG) neurons.
Liting Sun   +27 more
wiley   +1 more source

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